Thilip Dhanavel

Feb 19

Window, Document, and Screen in Javascript

Window: A window is an object. window object sits at the top of the JavaScript Object hierarchy and represents the browser window. The window object is supported by all browsers. All global JavaScript objects, functions, and variables automatically become members of the window object. The window is the first thing…

Java Script

2 min read

Jan 11

Objects and their internal representation — Javascript

Object: Javascript is designed on a simple object-based paradigm. An object is a reference data type. It is a collection of properties and the property is an association between keys and values. The property value can be function, in which case the property is known as methods. In Javascript, an…

Java Script

3 min read

Jan 11

The Evolution of HTTP

HTTP (Hypertext Transfer Protocol): Before making this leap forward, let’s trace our steps back to when the internet was in its infancy to understand how the different versions evolved into the current form. In 1969, US defense created a program called ARPANET ( Advanced Research Projects Agency Networks). ARPANET used…

Https

3 min read

Jan 4

Getter and Setter in Classes — Javascript

In javascript, getter and setter are accessor properties. These properties are function that executes on getting and setting a value. These properties are represented by methods but denoted by ‘get’ & ‘set’ keywords. To understand this property we can look into an example, class Account { constructor(owner, mov) { this.owner…

Java Script

2 min read

Dec 30, 2021

Classes — Javascript

Classes: Classes are introduced in javascript on the ECMA2015 / ES6 version. Class methods are with the same syntax as object methods use the keyword class to create a class. Always add a constructor() method then add any number of methods. Syntax: class myClass{ constructor() {}…

Java Script

2 min read

Dec 30, 2021

Prototype Inheritance in Javascript

Prototype Inheritance: Javascript is a prototype-based object-oriented programming language. Let us consider we have an object for the user with its properties and methods, we need to create an object for admin with small changes in the user. In this case prototype inheritance has a major role. Simply prototype inheritance refers to…

Java Script

2 min read

Dec 28, 2021

Prototype in Javascript

Prototype: A prototype is a kind of object which functions always. This is saved inside the prototype property of a function. To understand the prototype new constructor function is created. class Person { constructor(name, year) { this.name = name; this.year = year; } } Person.prototype.calcAge = function () { console.log(2021…

Java Script

2 min read

Dec 6, 2021

JSON

JSON: JSON: JavaScript Object Notation. It is a text format for storing and transporting data. JSON is self-describing and simpler to understand. JSON is an open standard format, which is lightweight and text-based designed explicitly for human-readable data interchangeable. It is a language-independent data format. …

Json

2 min read

Dec 5, 2021

Efficiently load Javascript with defer and async

Loading the webpage fast is also depends upon how we load the script. The HTML parsing starts from the top and moves towards the bottom. In general, while HTML parsing if the script load before the HTML completes HTML parsing then the HTML parsing is paused till the script is…

Java Script

3 min read

Dec 4, 2021

Event Propagation in Javascript

Event Propagation: Event propagation is a mechanism that defines how events travel through the DOM tree to arrive at their target and what happens to it afterward. To understand event propagation we need an example. <body> <div class="container"> <p class="para"> <a href="#" class="link"> Click me</a> </p> </div> </body>

Java Script

2 min read